On partially minimum phase systems and nonlinear sampled-data control

The concept of partially minimum phase systems is introduced and used with reference to the class of nonlinear systems exhibiting a linear output. It turns out that input-output feedback linearization with stability of the internal dynamics can be pursued via the use of a dummy output with respect to which the system is minimum-phase. The design strategy is extended to multirate sampled-data control and a working example illustrates the performances.